Nordic catalogue - Watts Industries

ZONE CONTROLFAN-COIL VALVE68ATwo-way zone valve 2131Two-way brass valve for fan-coils. on/off operation with actuators series 22C.Max. operating temperature: 100°C. Disc stroke: 2,5 mm. Nominal pressure: 16 bar.Article number Size Kvs Unit213112 1/2" M 1,7 with cone 1213134 3/4" M 2,8 with cone 121311 1" M 5,2 with cone 1213112P 1/2" M 1,7 flat sealing 1213134P 3/4" M 2,8 flat sealing 121311P 1" M 5,2 flat sealing 1Three way zone valve 3131Three-way brass valve for fan-coils. on/off operation with actuators series 22C. Max.operating temp.: 100°C. Disc stroke: 2,5 mm. Nominal pressure: 16 bar. Can be used both asmixing and diverting valve, except for version 31311 which can only be used as diverting valve.FArticle number Size Kvs Kvs by-pass Unit313112 1/2" M 1,7 1,3 with cone 1313134 3/4" M 2,8 1,8 with cone 131311 1" M 5,2 3,3 with cone 1313112P 1/2" M 1,7 1,3 flat sealing 1313134P 3/4" M 2,8 1,8 flat sealing 131311P 1" M 5,2 3,3 flat sealing 1Three way zone valve 4131Three-way brass valve with 4 connections for fan-coils. on/off operation with actuatorsseries 22C. Max. operating temp.: 100°C. Disc stroke: 2,5 mm. Nominal pressure: 16 bar.Can be used both as mixing and diverting valve.Article number Size Kvs Kvs by-pass Unit413112 1/2" M 1,7 1,3 with cone 1413134 3/4" M 2,8 1,8 with cone 1413112P 1/2" M 1,7 flat sealing 1413134P 3/4" M 2,8 flat sealing 1Screw connection type 840Soft sealed union with nut for zone valves series 2131 / 3131 / 4131 with cone.Article number Size Unit8401212GAS 1/2" x 1/2" 508403434GAS 3/4" x 3/4" 5084011GAS 1" x 1" 50Weld union 841Weld union with nut for fan coil valves series 2131, 3131, 4131.* With O-ring on the tailpiece. Remove O-ring temporarily during the welding.** Without O-ring.NArticle number Size Unit8411214C* 1/2" x 14 508411215C* 1/2" x 15 508411216C* 1/2" x 16 508413412C* 3/8" x 12 508411216SOL** 1/2" x 16 50841128SOL** 1/2" x 8 508413422SOL** 3/4" x 22 50